25 April 2008

When planning a lift, LiftPlanner and Lift Movie developer, Jim Meehan says, “Site information is provided from one of three sources: a computerised plot plan of the lift site is available from the construction company; the lift planner has to visit the site to take precise field measurements; or a three dimensional laser camera can be used to create a dense grid of spatially-aligned points, known as a “point cloud”. The point cloud measurements taken around the site are joined together, transferred into AutoCAD and the cranes, rigging and loads inserted to produce a view.

The project (left) is a malting plant in Minnesota, which was scanned by LiftPlanner Software in conjunction with Online Systems Inc. A Liebherr LTM 1220-5.1 wheeled mobile with 60 m main boom and a 22 m fixed jib offset at 30 degrees was used to place a baghouse on a 61 m high silo platform.

The information gathered by the laser scanner can also be used to create a video of the complete lift, using LiftPlanner Software’s Lift Movie program. For examples of lift videos in action, moving reactors, statues on public buildings and loads on gantries, go to http://www.liftplanner.net/Lift%20Movie.htm#MOVIE

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